Francois Barbe-Marbois, Marquis de Barbé-Marbois, Minister of the Treasury of the Republic of France, Robert R. Livingston, Ambassador from the united States, and James Madison, Secretary of State, sign the Treaty of Cession, ceding the French enclave of Louisiana to the u.S. for 15,000,000 Dollars.

       [restored 11/13/2021]

Subsequent Events:

Authority:

Articles of Confederation, Article XI
ccc-2point0.com/constitution-for-the-united-states

References:

Calvin D. Linton, ed. The Bicentennial Almanac: 200 Years of America, 1776-1976, (Nashville, Tennessee: Thomas Nelson, 1975), 60.

Current U.s. National Debt:

$36,167,124,467,492

Source